有效

It is also pointed out that overbank flood-induced deposition on flood plain is mainly caused by the transversal exchange of water and sand between the flood plain and the main channel. By water and sand diversion experiments performed in 2002, it is verif...

通过2002年的调水调沙试验，验证了漫滩洪水可有效增加平滩流量的认识，建议在下游泥沙还没有得到有效控制的情况下允许洪水在一定范围内漫滩，这样从长远来看对防洪是有利的。

Results show that main microbial populations in the reservoir are saprophytic bacteria,hydrocarbon-oxidizing bacteria and ferment bacter...

结果表明，腐生菌、烃类氧化菌、发酵菌等是油藏中存在的主要微生物群落；注入玉米浆可以有效刺激内源微生物的生长与代谢，产生表面活性剂和生物气，有利于驱油；硝酸铵可以有效抑制硫酸盐还原菌的生长。

Accuracy between two groups was calculated byχ~2 test.Calculate the average effective radiation dose of the 30 patients.Results In group A,seventeen patients underwent both DSCT coronary angiography and SCAG,among 255 segments of 17 patients,105 lesion sites of 70 segments were diagnosed stenosis or obstruction,of them,95 lesion sites were confirmed by SCAG.The accuracy of DSCTCA was 90.48%.The agreement of two methods have a high agreement(Kappa =0.853).In group B,13 patients underwent both DSCT coronary angiography and SCAG,among 195 segments of 13 patients,73 lesion sites of 57 segments were diagnosed stenosis or obstruction, of them,65 lesion sites were confirmed by SCAG.The accuracy of DSCTCA was 89.04%.The agreement of two methods have a high agreement(Kappa =0.835). There was no significant difference(χ~2=0.098,p＞0.05) between the accuracy of two groups.The effective radiation dose of 30 patients was 3.67±0.43 mSv.Conclusion Compared with SCAG,prospectively ECG-gated transverse DSCT is a valuable examination to detect and diagnose coronary artery disease with a low dose coronary angiography.The accuracy of the DSCT is approximate to the SCAG.There was no significant difference between the accuracy of two groups.

结果200例患者均成功完成了适应性前瞻性心电门控双源CT冠状动脉血管成像；30例同期行SCAG检查的患者，A组17例：HR≤75 bpm，可评价冠状动脉节段255个，70个冠状动脉节段有105处不同程度的狭窄，95处狭窄程度与金标准SCAG相符，其阳性诊断准确率为90.48%；2种方法的诊断结果得到了较高的一致性(Kappa值=0.853)。B组13例；HR≥91 bpm，可评价冠状动脉节段195个，57个冠状动脉节段有73处不同程度的狭窄，65处狭窄程度与SCAG相符，其阳性诊断准确率为89.04%；2种方法的诊断结果得到了较高的一致性(Kappa值=0.835)。2个心率组间的诊断准确率无明显统计学差异(x~2=0.098，p＞0.05)。30例患者的平均有效辐射剂量为3.67±0.43 mSv结论适应性前瞻性心电门控双源CT冠状动脉成像是一种有效减低辐射剂量的扫描方式，其诊断准确率与金标准SCAG相比得到较高的一致性，且高、低2个心率组间诊断准确率无明显统计学差异。

Before the resistance type touchscreen mainly looked whether monitor's frame does oppress the touchscreen in the effective work region, if before oppressing the touchscreen in the effective work region please to twist monitor's, frame clamping screw the pine then.

对于电阻式触摸屏主要看显示器的前框是否压迫到触摸屏的有效工作区域上，如压迫到触摸屏的有效工作区域上请将显示器的前框固定螺钉拧松即可。

According to the effectual ingredient, it can pass through scalp's surface, inhabit leather scurf spore-forming , filter DHT effectively, prevent the unwanted hormone hair follicle and help the blood circulation.

根据有效成分，它可以通过头皮表面，居住皮革头皮屑孢子形成，有效地过滤睾酮，防止有害的激素，帮助毛囊的血液循环。

At first, this paper gave the definition of real efficient secondary electron emission coefficient and discussed its relation the incident energy of high energy primary electron in metal in theory.

提出有效真二次电子发射系数的概念，并从理论上论述了高能原电子的能量与金属的有效真二次电子发射系数的关系，然后用实验数据证明了该理论的正确性，最后对结果进行了讨论。

The invention relates to a code device, which is characterized in that: the device safety storage section has a blank mark which comprises at least two conditions as effective and ineffective; when the blank mark is effective, the code device only can be logged in by the device initial user; and when it is ineffective, the code device can be logged in by other user without the initial user.

本发明提供一种密码设备，其特征在于：在设备安全存储区内设置一空白标志，该空白标志至少具有有效及无效两种状态，当空白标志有效时，密码设备只接受设备初始用户的登录，当空白标志无效时，密码设备不接受设备初始用户的登录，其它用户可以正常登录。

The results showed that the frequency of germination were able to be increased by keeping seed vessel, culturing seeds with radicle up and pre-treating seeds in 5.0mg/L GA3 solution for 12h. The frequency of explant-browning was reduced by adding AC 0.5mg/L to induction media and the vigor of plantlets was promoted by the AC-adding. The propagating coefficient could be improved and the frequency of bud-vitrifration increased by adding 150mg/L coconut water.

结果表明发芽时保留种皮、接种时胚根向上对蚕豆种子的萌发有着至关重要的影响，用5.0mg/L GA3溶液浸种12h有利于种子萌发；培养基中添加0.5g/L AC能有效抑制外植体的褐化，并能使植株生长健壮；培养基中添加150mg/L椰汁能提高繁殖系数，有效抑制玻璃苗的发生。

In this verification, according the topology of PCI Express, I have done some modification of the most popular verification environment at this moment, for example: add some modules with self-check function which has improve the efficiency of debug.

本次验证工作中，以目前国内外最流行的验证环境模型为基础，结合PCI Express的实际情况，做了许多有效的改进，增加了一些具有自动检查结果功能的模块，有效的提高了此后的调试过程的效率。

This research was focused on the target of 797 Public Elementary School Teachers also acting as administrative directors in Nantou county by the self-composed "Questionnaire of Job Stress and Leisure Participation of Elementary School Teachers also acting as Administrative Directors in Nantou county" as the survey tool. The content included: Job Pressure Scale, Leisure Participation Scale and Basic Personal Data. 797 questionnaires were distributed and collected 641 effective questionnaire out of 648 returned questionnaire with a return rate of 80.4%.

本研究以南投县之公立国民小学兼行政主管教师797人为对象，以普查的方式实施问卷调查，以自编「南投县国民小学兼行政主管教师工作压力及休闲活动参与之问卷」为研究工具，内容包含：工作压力量表、参与休闲活动量表及个人基本资料，调查期间共发出问卷797 份，回收648 份，有效问卷641 份，有效问卷比例为80.4%。

The split between the two groups can hardly be papered over.

这两个团体间的分歧难以掩饰。

This approach not only encourages a greater number of responses, but minimizes the likelihood of stale groupthink.

这种做法不仅鼓励了更多的反应，而且减少跟风的可能性。